Table
T17. Break times, transit times, depths, and
interval velocities for each station occupied during the VSP
experiment.
Station
Depth
(mbsf)Hydrophone
break time
(ms)Geophone
break time
(ms)Transit
time
(ms)Interval
velocity
(m·s-1)
20
121.0
73.72
1685.57
1611.85
1732.2
19
146.1
73.73
1700.07
1626.34
1672.2
18
176.1
73.70
1717.98
1644.28
1806.1
17
206.1
73.67
1734.56
1660.89
1949.3
16
236.1
73.61
1749.89
1676.28
1857.6
15
266.1
72.73
1765.16
1692.43
1808.3
14
296.1
72.76
1781.78
1709.02
1914.5
13
326.1
72.69
1797.38
1724.69
1789.3
12
356.0
74.44
1815.84
1741.40
1921.8
11
386.0
74.60
1831.61
1757.01
1856.9
10
416.1
76.50
1849.72
1773.22
1903.6
9
446.1
75.39
1864.37
1788.98
2455.0
8
476.1
76.24
1877.44
1801.20
1570.4
7
505.2
75.26
1894.99
1819.73
4013.0
6
536.1
76.51
1903.94
1827.43
1505.0
5
566.2
76.51
1923.94
1847.43
1934.0
4
596.1
76.42
1939.31
1862.89
1929.3
3
626.1
76.40
1954.84
1878.44
2953.9
2
656.2
75.54
1964.17
1888.63
1959.5
1
686.1
75.44
1979.33
1903.89